Answers

Add 80/75 and 21/60

1^st number: 1 5/75, 2^nd number: 21/60

80/75 + 21/60 is 17/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 60 is 300
   
   Next, find the equivalent fraction of both fractional numbers with denominator 300
2. For the 1st fraction, since 75 × 4 = 300,
   80/75 = 80 × 4/75 × 4 = 320/300
3. Likewise, for the 2nd fraction, since 60 × 5 = 300,
   21/60 = 21 × 5/60 × 5 = 105/300
4. Add the two like fractions:
   320/300 + 105/300 = 320 + 105/300 = 425/300
5. 425/300 simplified gives 17/12
6. So, 80/75 + 21/60 = 17/12
   In mixed form: 15/12

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